Better charts and graphs for XF

Currently Flot is used for charts and graphs. Flot itself seems rather unimpressive compared to alternatives like Google Charts, ZingCharts, Linkurious, D3, etc.
Having a good Charts & Graphs solution packaged with XF will not only give us better backend charts, but more importantly will allow addon developers to create very beautiful things for the front end. It would also allow for more beautiful polls.